PetaPixel

Use Your iPhone as a Free Hot Shoe Mounted Light Meter

Have an older camera that doesn’t have a built-in light meter? Instead of buying an expensive light meter, you can download the Pocket Light Meter app for free if you have an iPhone. What’s more, you can even mount it to your camera’s hot shoe if you don’t mind looking uber-geeky while shooting. Nigel over at phototinker wrote a tutorial for creating the iPhone hot shoe holder shown above.

iPhone hotshoe holder (via Make)